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43 results about "Central sleep apnea" patented technology

Central sleep apnea is a sleep disorder in which you briefly stop breathing during sleep.

Integrated diagnostic and therapeutic system and method for improving treatment of subject with complex and central sleep apnea

The present invention relates to an integrated sleep diagnosis and treatment device, and more particularly to an integrated apnea diagnosis and treatment device. The present invention additionally relates to methods of sleep diagnosis and treatment. The sleep disorder treatment system of the present invention can use a diagnosis device to perform various forms of analysis to determine or diagnose a subject's sleeping disorder or symptoms of a subject's sleep disorder, and using this analysis or diagnosis can with or in some embodiments without human intervention treat the subject either physically or chemically to improve the sleeping disorder or the symptoms of the sleeping disorder. The diagnostic part of the system can use many different types of sensors and methods for diagnosing the severity of the symptoms of or the sleep disorder itself. The treatment part of the system can use a device to physically or chemically treat the subject's symptoms or sleep disorder itself.
Owner:CLEVELAND MEDICAL DEVICES

Ventilatory assistance for treatment of cardiac failure and Cheyne-Stokes breathing

Method and apparatus for the treatment of cardiac failure, Cheyne Stokes breathing or central sleep apnea are disclosed. A subject is provided with ventilatory support, for example positive pressure ventilatory support using a blower and mask. Respiratory airflow is determined. From the respiratory airflow are derived a measure of instantaneous ventilation (for example half the absolute value of the respiratory airflow) and a measure of longterm average ventilation (for example the instantaneous ventilation low pass filtered with a 100 second time constant). A target ventilation is taken as 95% of the longterm average ventilation. The instantaneous ventilation is fed as the input signal to a clipped integral controller, with the target ventilation as the reference signal. The output of the controller determines the degree of ventilatory support. Clipping is typically to between half and double the degree of support that would do all the respiratory work. A third measure of ventilation, for example instantaneous ventilation low pass filtered with a time constant of 5 seconds, is calculated. Ventilatory support is in phase with the subject's respiratory airflow to the fuzzy extent that this ventilation is above target, and at a preset rate conversely.
Owner:RESMED LTD

Ventilatory assistance for treatment of cardiac failure and cheyne-stokes breathing

Method and apparatus for the treatment of cardiac failure, Cheyne Stokes breathing or central sleep apnea are disclosed. A subject is provided with ventilatory support, for example positive pressure ventilatory support using a blower and mask. Respiratory airflow is determined. From the respiratory airflow are derived a measure of instantaneous ventilation (for example half the absolute value of the respiratory airflow) and a measure of longterm average ventilation (for example the instantaneous ventilation low pass filtered with a 100 second time constant). A target ventilation is taken as 95% of the longterm average ventilation. The instantaneous ventilation is fed as the input signal to a clipped integral controller, with the target ventilation as the reference signal. The output of the controller determines the degree of ventilatory support. Clipping is typically to between half and double the degree of support that would do all the respirator work. A third measure of ventilation, for example instantaneous ventilation low pass filtered with a time constant of 5 seconds, is calculated. Ventilatory support is in phase with the subject's respiratory airflow to the fuzzy extent that this ventilation is above target, and at a preset rate conversely.
Owner:RESMED LTD

Ventilatory stabilization technology

A system for reducing central sleep apnea (CSA) is described in which certain methods of increasing a patient's rebreathing during periods of the sleep cycle are used. By increasing rebreathing during periods of overbreathing, the over-oxygenation which typically results from the overbreathing period can be reduced, thus reducing the compensating underbreathing period and effectively reducing the loop gain associated with the central sleep apnea. Nasal occlusion and a leak resistant oral interface provide control for gas leaks from a patent interface.
Owner:UTI LLP

Method and Means of Preventing and Treating Sleep Disordered Breathing

A method of treating or preventing snoring, obstructive sleep apnea (OSA) and / or central sleep apnea (CSA) comprises administering a pharmacologically effective amount a salt of acetylhomotaurine (AcHT) such as calcium acamprosate (CA) to a patient. Also disclosed is the use of AcHT and CA for the manufacture of a medicament for treating or preventing snoring, OSA and / or CSA and of a diagnostic device, kit or composition; a protective patch comprising AcHT or CA; and a pharmaceutical composition comprising AcHT or CA and an agent capable of alleviating the effects of snoring OSA and / or CSA, in combined amounts effective in the treatment of snoring OSA and / or CSA, and a carrier.
Owner:CEREUSCIENCE AB

System and Method to Modulate Phrenic Nerve to Prevent Sleep Apnea

An implantable medical device for treating breathing disorders such as central sleep apnea wherein stimulation is provided to the phrenic never through a transvenous lead system with the stimulation beginning after inspiration to extend the duration of a breath and to hold the diaphragm in a contracted condition.
Owner:ZOLL RESPICARDIA INC

Osa/csa diagnosis using recorded breath sound amplitude profile and pitch contour

Disclosed herein are breathing disorder identification, characterization and diagnosis methods, devices and systems. In general the disclosed methods, devices and systems may rely on the characterization of breath sound amplitudes, periodic breath sounds and / or aperiodic breath sounds to characterize a breathing disorder as obstructive (e.g. obstructive sleep apnea - OSA) or non-obstructive (e.g. central sleep apnea - CSA).
Owner:UNIV HEALTH NETWORK

Wireless closed-loop and system to detect and treat sleep apnea

A wireless implantable system is provided that is externally powered and comprises of a closed-loop feedback for treating both patients with obstructive and central sleep apnea. A method is provided for treating sleep apnea using an implantable device. The method comprises sensing an inspiration (IN) signal representative of inspiration experienced by a patient from a respiratory surrogate signal and sensing a respiratory effort (RE) signal representative of an amount of effort exerted by the patient during respiration. The method also comprises analyzing the inspiration signal relative to an IN baseline, that corresponds to normal respiratory behavior, to identify an IN indicator, analyzing the RE signal relative to an RE baseline, that corresponds to a normal amount of respiratory exerted by the patient, to identify an RE indicator, declaring a central sleep apnea (CSA) state or an obstructive sleep apnea (OSA) state based on the IN and RE indicators, and delivering at least one of a CSA therapy when the CSA state is declared or an OSA therapy when the OSA state is declared.
Owner:PACESETTER INC

Di-substituted amides for enhancing glutamatergic synaptic responses

This invention relates to compounds, pharmaceutical compositions and methods for use in the prevention and treatment of cerebral insufficiency, including enhancement of receptor functioning in synapses in brain networks responsible for basic and higher order behaviors. These brain networks, which are involved in regulation of breathing, and cognitive abilities related to memory impairment, such as is observed in a variety of dementias, in imbalances in neuronal activity between different brain regions, as is suggested in disorders such as Parkinson's disease, schizophrenia, respiratory depression, sleep apneas, attention deficit hyperactivity disorder and affective or mood disorders, and in disorders wherein a deficiency in neurotrophic factors is implicated, as well as in disorders of respiration such as overdose of an alcohol, an opiate, an opioid, a barbiturate, an anesthetic, or a nerve toxin, or where the respiratory depression results form a medical condition such as central sleep apnea, stroke-induced central sleep apnea, obstructive sleep apnea, congenital hypoventilation syndrome, obesity hypoventilation syndrome, sudden infant death syndrome, Rett syndrome, spinal cord injury, traumatic brain injury, Cheney-Stokes respiration, Ondines curse, Prader-Willi's syndrome and drowning. In a particular aspect, the invention relates to compounds useful for treatment of such conditions, and methods of using these compounds for such treatment.
Owner:CORTEX PHARMA INC

Di-substituted amides for enhancing glutamatergic synaptic responses

This invention relates to compounds, pharmaceutical compositions and methods for use in the prevention and treatment of cerebral insufficiency, including enhancement of receptor functioning in synapses in brain networks responsible for basic and higher order behaviors. These brain networks, which are involved in regulation of breathing, and cognitive abilities related to memory impairment, such as is observed in a variety of dementias, in imbalances in neuronal activity between different brain regions, as is suggested in disorders such as Parkinson's disease, schizophrenia, respiratory depression, sleep apneas, attention deficit hyperactivity disorder and affective or mood disorders, and in disorders wherein a deficiency in neurotrophic factors is implicated, as well as in disorders of respiration such as overdose of an alcohol, an opiate, an opioid, a barbiturate, an anesthetic, or a nerve toxin, or where the respiratory depression results form a medical condition such as central sleep apnea, stroke-induced central sleep apnea, obstructive sleep apnea, congenital hypoventilation syndrome, obesity hypoventilation syndrome, sudden infant death syndrome, Rett syndrome, spinal cord injury, traumatic brain injury, Cheney-Stokes respiration, Ondines curse, Prader-Willi's syndrome and drowning. In a particular aspect, the invention relates to compounds useful for treatment of such conditions, and methods of using these compounds for such treatment.
Owner:CORTEX PHARMA

Method and apparatus for non-invasive monitoring of respiratory parameters in sleep disordered breathing

An air delivery system includes a controllable flow generator operable to generate a supply of pressurized breathable gas to be provided to a patient for treatment and a pulse oximeter configured to determine a measure of patient effort during a treatment period and provide a patient effort signal for input to control operation of the flow generator. An existing problem for known devices includes discriminating between obstructive sleep apnea (OSA) and central sleep apnea (CSA). OSA is indicative of upper airway collapse and can be used as an input to auto-titration algorithms for the CPAP pressure applied or the end-expiratory pressure (EEP) used in a bi-level device. If these parameters were available in real-time in a flow generator, they could be used to (a) contribute to auto-titration algorithms and (b) be recorded with respiratory specific parameters to allow physicians to observe long-term trends and have a richer data set to determine the long term management of the patient.
Owner:RESMED LTD

Methods for the treatment of respiratory depression

This invention relates to compounds, pharmaceutical compositions and methods for use in the prevention and treatment of cerebral insufficiency, including enhancement of receptor functioning in synapses in brain networks responsible for basic and higher order behaviors. These brain networks, which are involved in regulation of breathing, and cognitive abilities related to memory impairment, such as is observed in a variety of dementias, in imbalances in neuronal activity between different brain regions, as is suggested in disorders such as Parkinson's disease, schizophrenia, respiratory depression, sleep apneas, attention deficit hyperactivity disorder and affective or mood disorders, and in disorders wherein a deficiency in neurotrophic factors is implicated, as well as in disorders of respiration such as overdose of an alcohol, an opiate, an opioid, a barbiturate, an anesthetic, or a nerve toxin, or where the respiratory depression results form a medical condition such as central sleep apnea, stoke-induced central sleep apnea, obstructive sleep apnea, congenital hypoventilation syndrome, obesity hypoventilation syndrome, sudden infant death syndrome, Rett syndrome, spinal cord injury, traumatic brain injury, Cheney-Stokes respiration, Ondines curse, Prader-Willi's syndrome and drowning, hi a particular aspect, the invention relates to bicyclic amide compounds useful for treatment of such conditions, and methods of using these compounds for such treatment.
Owner:CORTEX PHARMA

Carbon Dioxide Inhalation Treatment Device for Central Sleep Apnea

The present invention discloses a carbon dioxide inhalation treatment device for central sleep apnea comprising a blower, a gas cylinder filled with carbon dioxide (CO2), an airbag, a mask, and a detection mechanism for detecting the central apnea by measuring the electromyographic activity of the chest wall muscles. The mask is provided with multiple holes providing a communication between the inside and outside of the mask in order to prevent any sense of resistance of breathing and to provide greater control of inspired CO2. Inspired CO2 from a gas mixture containing also a minimum 20% O2 is driven by air using a blower into a mixing chamber. This carbon dioxide inhalation treatment device for central sleep apnea can provide a stable, mild level of carbon dioxide for patients with central sleep apnea, thus by preserving respiratory drive correcting central sleep apnea without increasing the arousal and microarousal frequency.
Owner:LUO YUANMING

Wireless closed-loop and system to detect and treat sleep apnea

A wireless implantable system is provided that is externally powered and comprises of a closed-loop feedback for treating both patients with obstructive and central sleep apnea. A method is provided for treating sleep apnea using an implantable device. The method comprises sensing an inspiration (IN) signal representative of inspiration experienced by a patient from a respiratory surrogate signal and sensing a respiratory effort (RE) signal representative of an amount of effort exerted by the patient during respiration. The method also comprises analyzing the inspiration signal relative to an IN baseline, that corresponds to normal respiratory behavior, to identify an IN indicator, analyzing the RE signal relative to an RE baseline, that corresponds to a normal amount of respiratory exerted by the patient, to identify an RE indicator, declaring a central sleep apnea (CSA) state or an obstructive sleep apnea (OSA) state based on the IN and RE indicators, and delivering at least one of a CSA therapy when the CSA state is declared or an OSA therapy when the OSA state is declared.
Owner:PACESETTER INC

Method and device for treating central sleep apnea

The invention discloses a method and device for treating central sleep apnea. The method includes the following steps that 1, surface electromyogram signals of respiratory muscles are collected; 2, filtering is carried out; 3, enveloping calculation of the surface electromyogram signals is carried out; 4, respiratory electromyogram sign signals are generated; 5, the oxyhemoglobin saturation of a patient is detected, wherein an oxyhemoglobin saturation probe clamped to a finger can be used; 6, if no respiratory electromyogram sign signal is collected in continuous 10 seconds and the decrease rate of oxyhemoglobin saturation exceeds 3%, external pacing is carried out on respiratory muscles. The method is applied to the device. The method and the device are precise, effective and good in use effect.
Owner:广州雪利昂生物科技有限公司

Method and device for treating central sleep apnea

The invention discloses a method and device for treating central sleep apnea. The method comprises the following steps of 1) collecting surface electromyographic signals of respiratory muscles; 2) filtering by a filter; 3) performing envelope calculation on the surface electromyography signals; 4) generating electric mark signals of the respiratory muscles; 5), detecting blood oxygen saturation ofa patient by using a blood oxygen saturation probe clamped to a finger; 6), if the electric mark signals are not sampled in 10 seconds and the blood oxygen saturation drops by 3% or above, conductingexternal pacing on the respiratory muscles. The method is applied to the device. The method and device have the advantages of being accurate and effective, and the use effect is good.
Owner:THE FIRST AFFILIATED HOSPITAL OF SUN YAT SEN UNIV

Judging method of sleep apnea mode of patient

InactiveCN104307079AThe method of discrimination is simpleNo costRespiratorsDiagnostic recording/measuringPositive airway pressureTidal volume
The invention discloses a judging method of a sleep apnea mode of a patient. The judging method includes the steps of S1, preparing a BiPAP (bi-level positive airway pressure) Plus; S2, providing a referential tidal volume V for the patient through the BiPAP Plus; S3, setting a critical pressure valve value X equal to 0.1-0.2; S4, starting the BiPAP Plus to provided assisted respiration to the patient; S5, calculating the difference value DeltaVn of the referential tidal volume V and the actual breathing tidal volume Vn of the patient in the n cycle, and calculating the ratio Xn of the DeltaVn and the referential tidal volume V; S6, comparing Xn with X, in the case that Xn is not smaller than X, providing the additional bi-level positive airway pressure ventilation to the patient; S7, recording a real-time breathing tidal volume Vn+1 of the patient in the n+1 cycle, when the real-time breathing volume Vn+1 in the n+1 cycle of the patient gradually becomes larger, judging that the patient is in the blocking type sleep apnea; when the real-time breathing volume Vn+1 in the n+1 cycle of the patient is no changed, judging that the patient is in central sleep apnea. The judging method is suitable for people of all ages and high in practicability.
Owner:深圳市南方格瑞斯科技有限公司

Method to Reduce Slosh Energy Absorption and its Damaging Effects Through the Reduction of Inelastic Collisions in an Organism

A method is provided for reducing the risk of sustaining a traumatic brain injury caused by a traumatic event that includes identifying a subject at risk of sustaining a traumatic brain injury, and then precisely increasing the partial pressure of carbon-dioxide (CO2) in the blood of the subject (pCO2). This method can be applied to raise the CO2 and pCO2 to improve orthostatic hypotension in conditions such as dysautonomias (like Positional Orthostatic Tachycardic Syndrome POTS) and to facilitate the drive to breathe in conditions like Central Sleep Apnea (CSA) and Sudden Infant Death Syndrome (SIDS). The pCO2 of the person is increased by placing a breathing apparatus over the mouth of the person through which the person must breath, wherein the breathing apparatus includes an enlarged dead space volume in which expired CO2 collects to be inhaled or re-breathed by the person on the next inhalation.
Owner:SMITH DAVID

Distinguishing between central and obstructive sleep apnea

Apparatuses and methods for detecting sleep apnea and classifying the events as obstructive sleep apnea (OSA) and / or central sleep apnea (CSA) are disclosed herein. The apparatuses can include respiratory treatment devices that have an auto adjusting algorithm that is able to classify a sleep apnea as CSA or OSA so that an appropriate pressure can be applied to the patient depending on the type of sleep apnea detected. The apparatuses and methods can use characteristics of at least one breath preceding the apnea event in classifying the event.
Owner:FISHER & PAYKEL HEALTHCARE LTD

Method and device for treating central sleep apnea

The invention discloses a method and device for treating the central sleep apnea. The method includes the following steps that: 1) the surface electromyographic signals of respiratory muscles are collected; 2) filtering is carried out, so that undesired components can be filtered out; 3) the envelope of the surface electromyographic signals is calculated; 4) respiratory muscle electric mark signals are generated; 5) the blood oxygen saturation of a patient is detected, and a blood oxygen saturation probe which clamps a finger can be adopted; and 6) if respiratory muscle electric mark signals have not been sampled for 10 consecutive seconds, and the blood oxygen saturation is reduced by more than 3%, in vitro pacing is performed on the respiratory muscles. The method and device for treating the central sleep apnea of the invention have the advantages of high accuracy, high effectiveness and good use effect.
Owner:广州雪利昂生物科技有限公司

Method for distinguishing obstructive sleep apnea and central sleep apnea

The invention relates to a method for distinguishing obstructive sleep apnea and central sleep apnea. The method comprises the steps that a breathing machine outputs a trapezoidal wave; the airway flow in the airway of a patient is collected, and thus the change condition of the airway flow within a period of time after the trapezoidal wave is output is obtained, wherein the change condition of the airway flow comprises the air flow rate; the airway resistance is calculated based on the amplitude of the trapezoidal wave and the air flow rate; whether the patient suffers from obstructive sleepapnea or central sleep apnea is judged according to the airway resistance. The method provided by the invention has the advantages that the distinguishing is accurate, and the realization is simple.
Owner:XIAONIU HEALTH CO LTD

3-substituted-1,2,3-triazin-4-one's and 3 substituted 1,3-pyrimidinone's for enhancing glutamatergic synaptic responses

InactiveUS20100267728A1Increase synaptic responseIncreasing AMPA receptor functionBiocideNervous disorderSIDS - Sudden infant death syndromeCentral sleep apnea
This invention relates to compounds, pharmaceutical compositions and methods for use in the prevention and treatment of cerebral insufficiency, including enhancement of receptor functioning in synapses in brain networks responsible for basic and higher order behaviors. These brain networks, which are involved in regulation of breathing, and cognitive abilities related to memory impairment, such as is observed in a variety of dementias, in imbalances in neuronal activity between different brain regions, as is suggested in disorders such as Parkinson's disease, schizophrenia, respiratory depression, sleep apneas, attention deficit hyperactivity disorder and affective or mood disorders, and in disorders wherein a deficiency in neurotrophic factors is implicated, as well as in disorders of respiration such as overdose of an alcohol, an opiate, an opioid, a barbiturate, an anesthetic, or a nerve toxin, or where the respiratory depression results form a medical condition such as central sleep apnea, stroke-induced central sleep apnea, obstructive sleep apnea, congenital hypoventilation syndrome, obesity hypoventilation syndrome, sudden infant death syndrome, Rett syndrome, spinal cord injury, traumatic brain injury, Cheney-Stokes respiration, Ondines curse, Prader-Willi's syndrome and drowning. In a particular aspect, the invention relates to compounds useful for treatment of such conditions, and methods of using these compounds for such treatment.
Owner:CORTEX PHARMA

3-substituted 1,2,3-triazin-4-one's and 3-substituted 1,3-pyrimidinone's for enhancing glutamatergic synaptic responses

This invention relates to compounds, pharmaceutical compositions and methods for use in the prevention and treatment of cerebral insufficiency, including enhancement of receptor functioning in synapses in brain networks responsible for basic and higher order behaviors. These brain networks, which are involved in regulation of breathing, and cognitive abilities related to memory impairment, such as is observed in a variety of dementias, in imbalances in neuronal activity between different brain regions, as is suggested in disorders such as Parkinson's disease, schizophrenia, respiratory depression, sleep apneas, attention deficit hyperactivity disorder and affective or mood disorders, and in disorders wherein a deficiency in neurotrophic factors is implicated, as well as in disorders of respiration such as overdose of an alcohol, an opiate, an opioid, a barbiturate, an anesthetic, or a nerve toxin, or where the respiratory depression results form a medical condition such as central sleep apnea, stroke- induced central sleep apnea, obstructive sleep apnea, congenital hypoventilation syndrome, obesity hypoventilation syndrome, sudden infant death syndrome, Rett syndrome, spinal cord injury, traumatic brain injury, Cheney-Stokes respiration, Ondines curse, Prader-Willi's syndrome and drowning. In a particular aspect, the invention relates to compounds useful for treatment of such conditions, and methods of using these compounds for such treatment.
Owner:CORTEX PHARMA

Carbon dioxide inhalation treatment device for central sleep apnea

The present invention discloses a carbon dioxide inhalation treatment device for central sleep apnea comprising a blower, a gas cylinder filled with carbon dioxide (CO2), an airbag, a mask, and a detection mechanism for detecting the central apnea by measuring the electromyographic activity of the chest wall muscles. The mask is provided with multiple holes providing a communication between the inside and outside of the mask in order to prevent any sense of resistance of breathing and to provide greater control of inspired CO2. Inspired CO2 from a gas mixture containing also a minimum 20% O2 is driven by air using a blower into a mixing chamber. This carbon dioxide inhalation treatment device for central sleep apnea can provide a stable, mild level of carbon dioxide for patients with central sleep apnea, thus by preserving respiratory drive correcting central sleep apnea without increasing the arousal and microarousal frequency.
Owner:LUO YUANMING
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